Also, I think there's some confusion about how the vaccines work. They're definitely intended to provoke an immune response, but the new ones don't use virus p

Also, I think there's some confusion about how the vaccines work. They're definitely intended to provoke an immune response, but the new ones don't use virus products. Instead, they contain particles (made by yeast) that assemble themselves into something that closely resembles the virus's structure. The immune system raises antibodies against that, priming it for dealing with future infections. More here (including a picture of the virus, which is quite pretty): https://www.ncbi.nlm.nih.gov/pubmed/23800545 https://www.ncbi.nlm.nih.gov/pubmed/23800545